(2000). Physicians' desk reference for nonprescription drugs and dietary supplements (21st ed.). Medical Economics.
Chicago Style (17th ed.) CitationPhysicians' Desk Reference for Nonprescription Drugs and Dietary Supplements. 21st ed. Montvale, NJ: Medical Economics, 2000.
MLA (9th ed.) CitationPhysicians' Desk Reference for Nonprescription Drugs and Dietary Supplements. 21st ed. Medical Economics, 2000.
Warning: These citations may not always be 100% accurate.